My dad gave me 10 rolls of various expired Kodak 120 slide film. It's all been stored in a freezer and it all expired in 1995. What should I expect from this stuff? Never experimented with expired film.

Some years ago the story I heard was that film manufacturers would produce a large batch of films then frozen them till released to the public. The expiry date depends not on the manufacturing date, but the date taken from the freezer. Whether this story was real or not I have no idea.

I think I'll be quite fine, maybe a bit darker than usual and softer colours but just o.k.
I'm using a Kodak Gold 200, in my ME Super, that expired (my dad thinks) in 1992 or so.. never kept in freezer.. so I don't know..
but i think these dates of expiration is more like a date of guidance and a refeance to a "best before" date, rather than an expiration date..